feat(oauth): add support for additional scope in oauth flow

[daliboru]

short description

Add optional additionalScope parameter to oauth functions to allow requesting extra permissions store additional scope in cookie and pass it through authorization and callback flows

EDIT: I also needed to expose refresh_token and expires_in. They are stored in the Account collection along with the access_token

The purpose of the changes.

I want to be able to update the scope after the initial OAuth flow, e.g., a user wishes to grant access to their GDrive; additional scope needs to be added.

The problem being solved or the feature being added.

I decided to solve this by adding an optional variable (additionalScope) to the signin method of the AuthClient class. The scope is passed via oauth_scope to the endpoint and eventually to the OAuthHandlers handler.

Instructions on how to test the changes.

Add string to signin method

const { oauth } = authClient.signin(
    'https://www.googleapis.com/auth/drive.readonly',
  )

and try accessing Google Drive data by passing accessToken (a field on Account) to the appropriate place